| Variables | |
| integer, save | iperio = 0 | 
| presence of periodicity.  More... | |
| integer, save | iperot = 0 | 
| number of rotation periodicities. automaticly evaluated. default value is 0  More... | |
| integer, save | igrper | 
| integer, save igrper | 
| integer, save iperio = 0 | 
presence of periodicity.
| integer, save iperot = 0 | 
number of rotation periodicities. automaticly evaluated. default value is 0